On top of the roof of the building between Bridger and Manzano, west side of Sacramento. You can climb onto the rooftops via a ladder in the alley off Sacramento. A second ladder leads to the highest rooftop where the pigeon is.

Perched between two massive air vents on the rooftop of the hospital. To get there, enter the hospital parking space on the north side (south from Vauxite) and enter the white doorway next to the ambulance. Climb the stairs behind the door all the way to the hospital rooftop and look for a short ladder that leads to an even higher section of the roof with the pigeon.

From the stairway that leads to the hospital rooftop (mentioned in the description for pigeon number 21), look for an early exit to a lower rooftop. At the northwest corner of this rooftop, on the corner of the railing is the pigeon.

The Hickey Bridge has two large, green supports at its base, one on the west and one on the east. The pigeon is sitting atop the support on the east but on the west side of it. To snipe the pigeon, go to the area just south of the bridge that juts out into the river and look north.

On the top of the building south of the western entrance to the bridge is a set of cable cars. The pigeon is on the ground between the cable cars. We got on top of the building by jumping from the bridge, though there are also stairs in the center of the plaza under the cable cars.

The pigeon is on a railing on the outside of the building on the southeast corner of Kunzite and an unmarked street (directly north of Split Sides), but very, very high. To get to it, ride a helicopter to the building rooftop (there's a landing pad). Climb down the ladder on the west side of the building to the walkway with the railing where the pigeon is waiting.

To get to this pigeon you'll want to first get onto the top of the remnants of an old train track. To do so, climb the stairs in the alley just off Hematite between Galveston and Frankfort (at the location of pigeon number 47). Follow the tracks north to Kunzite, where they go through a building. The pigeon is on the tracks, between the pillars holding up the building.

To get to this pigeon, first go to the east side of the building on Denver-Exeter and Hermatite. You can travel to the top of the building by walking into the blue arrow. The pigeon is on the concrete wall surrounding the rooftop observatory.

Get on top of the buildings that line the southeast waterfront via the construction ramps in the yard northwest of the buildings. From the rooftop pictured to the right, look down into an alcove below. The pigeon is far back in the alcove, but launching a rocket into the alcove will take care of it.

On the west side of the yard in front of the Civilization Committee building, sitting in a statue. You can see the statue from behind the fence that separates the yard from Albany, which is good because if you try to step foot in the yard you'll instantly get a four star wanted level. Snipe the pigeon from the street.

This pigeon is hiding inside the top portion of this building and is not visible from the streets. You can ride a chopper to the rooftop to spot it, or just throw a grenade into the window from the streets.

Sitting inside a doorway on the rooftop of the building at the northwest corner of Seymour and Howard. To get to it, go to the top of the train station to the south. At the west end of the train platform you can climb onto the rooftop (use a bench or short wall for a boost) and cross the roofs to the top at the other side of the street.

The airport building east of the parking lots has two circular openings in the wall near the rooftop. The pigeon is in the southmost circular opening. You can either take it out with a grenade from below or climb to the train platform (there are stairs at the entrance to the northern parking lot) and run south to peek into the opening with a sniper rifle.

Go north on the train tracks and watch the right edge. The track will eventually come very close to a rooftop at the northeastern edge of the oval track. You can hop over the track railing to land on the rooftop, and from there go right to find the pigeon between two air conditioners.

This pigeon is on the very center of the railing at the higheset point of the airport control tower at the eastern end of the airport. To get this guy, you need two things: 1) a sniper rifle and 2) large cojones. Get behind the main airport building (the one with pigeon number 25 in the circular opening). There's a fence that separates the safe zone (west) from the highly secured airport runway (east). You need to cross this line and get close enough to the control tower that the game begins rendering the pigeon. This will trigger a four star alarm, but you have time to pull out your sniper rifle and peg the bird from directly west of its location.